1999 Daewoo Lanos Car shudders when accelerating

1999 DAEWOO LANOS
80,000 MILES • 4 CYL • FWD • MANUAL
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EVYN
  • MEMBER
  • 2 POSTS
Hi,

When accelerating my Lanos shudders. It may suddenly leap forward, or just shudder for awhile before smoothing out.

When driving at constant speed it drives smoothly. However, as soon as I hit a hill, it starts shuddering again.

The cables that connect to the spark plugs have been replaced. I replaced the plugs today. The problem persists.

Any advice appreciated.
Apr 13, 2009 at 4:25 AM
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ZACKMAN
  • ✓ASE Certified Mechanic
  • 4,202 POSTS
  • ASE Certified Mechanic
Re-check the gap for the spark plugs to .044. Also, re-check the plug wires for possible misfire. If it has not been done, consider checking/replacing the fuel filter.

Is the check engine light on?
Apr 15, 2009 at 12:19 AM
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EVYN
  • MEMBER
  • 2 POSTS
Thanks for the reply.

I will that today. The filter is fairly new, but I will replace it anyway.

The engine light is not on.
Apr 15, 2009 at 2:23 AM
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ZACKMAN
  • ✓ASE Certified Mechanic
  • 4,202 POSTS
  • ASE Certified Mechanic
Let us know what you find out.
Apr 15, 2009 at 9:29 PM
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